Desertboy
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http://en.wikipedia.org/wiki/Phytochrome
I have another FR lamp which I shall use to extend the hours to 15/9 in a separate tent which is on day 18 at the moment.
Day one of flower
2 600w, 1 AK47, no airstones, flooming only.
Using this information and a Far Red LED I intend to grow this AK47 out in a modified aquafarm (Turned it into an MPB essentially) on a lighting schedule of 11.5/9 so the plant goes through 8 circadian rhythms (Plant days) in 7 real days or after 7 real weeks the plant will be on 8 "plant" weeks.Phytochromes are characterised by a red/far-red photochromicity. Photochromic pigments change their "colour" (spectral absorbance properties) upon light absorption. In the case of phytochrome the ground state is Pr, the r indicating that it absorbs red light particularly strongly. The absorbance maximum is a sharp peak 650–670 nm, so concentrated phytochrome solutions look turquoise-blue to the human eye. But once a red photon has been absorbed, the pigment undergoes a rapid conformational change to form the Pfr state. Here fr indicates that now not red but far-red (also called "near infra-red"; 705–740 nm) is preferentially absorbed. This shift in absorbance is apparent to the human eye as a slightly more greenish colour. When Pfr absorbs far-red light it is converted back to Pr. Hence, red light makes Pfr, far-red light makes Pr. In plants at least Pfr is the physiologically active or "signalling" state.
I have another FR lamp which I shall use to extend the hours to 15/9 in a separate tent which is on day 18 at the moment.
Day one of flower
2 600w, 1 AK47, no airstones, flooming only.